Beneficial comments (recommendations, additions, deletions) and any pertinent data which may be of use in improving this document should be addressed to: Director, U.S. Army Laboratory Command, Materials Technology Laboratory, ATTN: SLCMT-MEE, Watertown, MA 02172-0001 by using the Standardization Document Improvement Proposal (DD Form 1426) appearing at the end of this document or by letter.

The ceramic composite armor shall be classified into classes according to the facing used:

Class 1 - 90% Aluminum oxide ceramic

Class 2 - 95% Aluminum oxide ceramic

Class 3 - Silicon carbide ceramic

Class 4 - Boron carbide ceramic

Class 5 - Titanium diboride ceramic

Class 6 - Other ceramic or ceramic/ceramic composite

The ceramic composite armor shall be classified into grades according to the reinforcement material used in the backplate: